Cooling module

Abstract

A cooling module capable of reducing vibration in a compartment attributable to the discharge pulsation of the compressor is disclosed. The cooling module comprises a radiator ( 1 ) mounted to a vehicle for cooling the cooling water by heat exchange between the cooling water and the air, and a condenser ( 2 ) for condensing the refrigerant by heat exchange between the refrigerant circulated in the refrigeration cycle and the air. The radiator ( 1 ) is fixed to the vehicle, and the condenser ( 2 ) is fixed to the radiator ( 1 ) through elastically deformable rubber bushings ( 3 ).

1. A cooling module comprising:
 a radiator mounted to a vehicle for cooling water by heat exchange between the cooling water and air; 
 a condenser for condensing refrigerant by heat exchange between the refrigerant circulated in a refrigerant cycle and the air, the condenser including a condenser core formed of a plurality of condenser tubes and two opposed sidewalls extending in parallel with surfaces of the condenser core, from an outer peripheral portion of the condenser core; 
 a plurality of mounting members for fixing the condenser to the radiator; and 
 a plurality of elastic members each coupled with a respective mounting member; 
 wherein the elastic member has a first portion disposed between the sidewalls of the condenser and formed to be elastically deformable in a vertical and a horizontal direction 
 wherein the radiator is fixed to the vehicle body through a plurality of elastically deformable support members, and 
 wherein the natural frequency of the elastic members is set to be at least twice or not more than one half of the natural frequency of the elastic support members. 
 
     
     
       2. The cooling module according to  claim 1 , wherein the elastic member further has two opposed second portions each adapted to bear against an outside surface of the sidewall. 
     
     
       3. The cooling module according to  claim 2 , wherein the elastic member has two opposed grooves between the first and second portions, which are configured to fittingly receive the sidewalls, respectively. 
     
     
       4. The cooling module according to  claim 1 ,
 wherein the radiator includes a radiator core having a plurality of tubes with the cooling water flowing therein and a pair of radiator tanks extending in the direction perpendicular to the length of the tube at the longitudinal ends of the tubes and communicating with the tubes, 
 wherein the radiator tanks are arranged at the vertical ends of the radiator core and each make up a down-flow heat exchanger with the cooling water vertically, and 
 wherein the mounting members are fixed to the radiator tanks. 
 
     
     
       5. The cooling module according to  claim 1 , wherein the mounting members are each formed with a depressed receptacle in which the elastic member is arranged. 
     
     
       6. The cooling module according to  claim 1 ,
 wherein the natural frequency of the elastic members is set to at least twice the natural frequency of the elastic support members. 
 
     
     
       7. The cooling module according to  claim 1 , wherein the first portion of the elastic member comprises a hollow portion extending in the same direction as that of the sidewalls. 
     
     
       8. A cooling module comprising:
 a radiator mounted to a vehicle for cooling water by heat exchange between the cooling water and air; 
 a condenser for condensing refrigerant by heat exchange between the refrigerant circulated in a refrigerant cycle and the air, the condenser including a condenser core formed of a plurality of condenser tubes and two opposed sidewalls extending in parallel with surfaces of the condenser core, from an outer peripheral portion of the condenser core; 
 a plurality of mounting members for fixing the condenser to the radiator; and 
 a plurality of elastic members each coupled with a respective mounting member; 
 wherein the elastic member has a first portion disposed between the sidewalls of the condenser and formed to be elastically deformable in a vertical and a horizontal direction; 
 wherein the refrigeration cycle includes a compressor for compressing and discharging refrigerant, and 
 wherein the natural frequency of the elastic members is set lower than the oscillation frequency generated by the discharge pulsation of the refrigerant in the compressor in such a manner that the elastic members attenuate the vibration generated by the discharge pulsation over the whole oscillation frequency range thereof. 
 
     
     
       9. The cooling module according to  claim 8 ,
 wherein the natural frequency of the elastic members is set to a level lower than ½ times the oscillation frequency. 
 
     
     
       10. The cooling module according to  claim 8 ,
 wherein the natural frequency of the elastic members is set to a level lower than 1/√{square root over (2)} times the oscillation frequency. 
 
     
     
       11. A cooling module comprising a radiator mounted to the vehicle for cooling the cooling water by heat exchange between the cooling water and the air and a condenser for condensing the refrigerant by heat exchange between the refrigerant circulated in the refrigerant cycle and the air,
 wherein the condenser is fixed to the radiator through elastically deformable elastic members 
 wherein the refrigeration cycle includes a compressor for compressing and discharging refrigerant, and 
 wherein the natural frequency of the elastic members is set lower than the oscillation frequency generated by the discharge pulsation of the refrigerant in the compressor in such a manner that the elastic members attenuate the vibration generated by the discharge pulsation over the whole oscillation frequency range thereof. 
 
     
     
       12. The cooling module according to  claim 11 ,
 wherein the natural frequency of the elastic members is set to a level lower than 1/√{square root over (2)} times the oscillation frequency. 
 
     
     
       13. The cooling module according to  claim 11 ,
 wherein the natural frequency of the elastic members is set to a level lower than ½ times the oscillation frequency. 
 
     
     
       14. A cooling module comprising:
 a radiator mounted to a vehicle for cooling water by heat exchange between the cooling water and air; 
 a condenser for condensing refrigerant by heat exchange between the refrigerant circulated in a refrigerant cycle and the air, the condenser including a condenser core formed of a plurality of condenser tubes and two opposed sidewalls extending in parallel with surfaces of the condenser core, from an outer peripheral portion of the condenser core; 
 a plurality of mounting members for fixing the condenser to the radiator; and 
 a plurality of elastic members each coupled with a respective mounting member; 
 wherein the elastic member has a first portion disposed between the sidewalls of the condenser and formed to be elastically deformable in a vertical and a horizontal direction; 
 wherein the elastic member further has two opposed second portions each adapted to bear against an outside surface of the sidewall; 
 wherein the elastic member has two opposed grooves between the first and second portions, which are configured to fittingly receive the sidewalls, respectively; 
 wherein surfaces of the grooves have a plurality of ridges formed to be in contact with outside surfaces of the sidewalls. 
 
     
     
       15. A cooling module comprising a radiator mounted to the vehicle for cooling the cooling water by heat exchange between the cooling water and the air and a condenser for condensing the refrigerant by heat exchange between the refrigerant circulated in the refrigerant cycle and the air,
 wherein the condenser is fixed to the radiator through elastically deformable elastic members; 
 wherein the radiator is fixed to the vehicle body through a plurality of elastically deformable support members, and 
 wherein the natural frequency of the elastic members is set to be at least twice or not more than one half of the natural frequency of the elastic support members. 
 
     
     
       16. The cooling module according to  claim 15 ,
 wherein the natural frequency of the elastic members is set to at least twice the natural frequency of the elastic support members.